Composition comprising (2,5-diaminophenyl)ethanol, an alkylpolyglucoside nonionic surfactant, an oxyethylenated sorbitan ester or a polyalkoxylated or polyglycerolated fatty alcohol in a medium rich in fatty substances, dyeing process and device therefor

Abstract

The present invention relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising one or more fatty substances, one or more alkylpolyglucoside nonionic surfactants and/or one or more oxyethylenated C8-C30 fatty acid esters of sorbitan, one or more (poly)alkoxylated fatty alcohol(s), and/or one or more (poly)glycerolated fatty alcohol(s); one or more oxidation bases chosen from (2,5-diaminophenyl)ethanol and also acid salts thereof or solvates thereof such as hydrates, optionally one or more couplers, optionally one or more basifying agent(s), one or more chemical oxidizing agent(s), and whose fatty substance content represents in total at least 10% by weight relative to the total weight of the composition and more particularly at least 25% by weight relative to the total weight of the said composition.

Claims

1. A composition for dyeing keratin fibers, comprising: a) at least one fatty substance; b) at least one compound chosen from alkyl(poly)glucoside nonionic surfactants, oxyethylenated C.sub.8 to C.sub.30 fatty acid esters of sorbitan, and combinations thereof; c) at least one oxidation base chosen from (2,5-diaminophenyl)ethanol and acid salts thereof, solvates thereof, and hydrates thereof; d) optionally at least one coupler; e) optionally at least one basifying agent; and f) at least one chemical oxidizing agent; wherein the fatty substance content represents at least about 20% by weight, relative to the total weight of the composition.

2. The composition according to claim 1, wherein the fatty substance is present in an amount ranging from about 30% to about 60% by weight, relative to the total weight of the composition.

3. The composition according to claim 1, wherein the fatty substance is chosen from C.sub.6-C.sub.16 hydrocarbons, hydrocarbons containing more than 16 carbon atoms, non-silicone oils of animal origin, plant oils of triglyceride type, synthetic triglycerides, fluoro oils, fatty alcohols, esters of fatty acids and/or of fatty alcohols other than triglycerides, plant waxes, non-silicone waxes, and silicones.

4. The composition according to claim 1, wherein the fatty substance is liquid at room temperature and at atmospheric pressure.

5. The composition according to claim 4, wherein the fatty substance is non-silicone.

6. The composition according to claim 1, wherein b) represents at least one alkyl(poly)glucoside nonionic surfactant chosen from the compounds represented by formula (I) below:
R.sub.1O(R.sub.2O).sub.t(G).sub.v(I) wherein: R.sub.1 represents a saturated or unsaturated, linear or branched alkyl group comprising from about 8 to 24 carbon atoms, or an alkylphenyl group in which the linear or branched alkyl group comprises from 8 to 24 carbon atoms, R.sub.2 represents an alkylene group comprising from about 2 to 4 carbon atoms, G represents a saccharide unit comprising from 5 to 6 carbon atoms, t denotes a value ranging from 0 to 10, and v denotes a value ranging from 1 to 15.

7. The composition according to claim 1, wherein b) represents at least one oxyethylenated C.sub.8 to C.sub.30 fatty acid ester of sorbitan chosen from oxyethylenated derivatives of C.sub.8-30 fatty acid monoesters and polyesters of sorbitan containing from 1 to 50 ethylene oxide units, and oxyethylenated derivatives of C.sub.12-24 fatty acid monoesters and polyesters of sorbitan containing from 4 to 20 ethylene oxide units.

8. The composition according to claim 1, wherein b) represents at least one oxyethylenated C.sub.8-C.sub.30 fatty acid ester of sorbitan chosen from oxyethylenated derivatives of saturated C.sub.12-24 fatty acid monoesters and polyesters, and sorbitan monolaurate oxyethylenated with 4 OE.

9. The composition according to claim 1, wherein b) is present in an amount ranging from about 0.1% to about 20% by weight, relative to the total weight of the composition.

10. The composition according to claim 1, wherein the oxidation base c) is present in an amount ranging from about 0.0001% to about 20% by weight, relative to the total weight of the composition.

11. The composition according to claim 1, further comprising at least one coupler d) chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers, heterocyclic couplers; addition salts thereof; and combinations thereof.

12. The composition according to claim 1, further comprising at least one basifying agent e) chosen from inorganic basifying agents, organic basifying agents, hybrid basifying agents, aqueous ammonia, alkali metal carbonates or bicarbonates, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, sodium hydroxide, potassium hydroxide, organic amines, alkanolamines, oxyethylenated and/or oxypropylenated ethylenediamines, amino acids, compounds represented by formula (VII), and mixtures thereof: ##STR00015## wherein in formula (VII): W is a compound chosen from a divalent C.sub.1-C.sub.6 alkylene radical optionally substituted with at least one hydroxyl group, and a C.sub.1-C.sub.6 alkyl radical, wherein W is optionally interrupted by at least one heteroatom; and R.sub.x, R.sub.y, R.sub.z, R.sub.t, which may be identical or different, each represent a hydrogen atom, a C.sub.1-C.sub.6 alkyl or C.sub.1-C.sub.6 hydroxyalkyl radical, or a C.sub.1-C.sub.6 amino alkyl radical.

13. The composition according claim 12, wherein e) is chosen from alkanolamines, monoethanolamine, and amino acids in neutral or ionic form.

14. The composition according to claim 1, wherein f) is hydrogen peroxide.

15. A process for dyeing keratin fibers, in the method comprising applying to the fibers a composition comprising: a) at least one fatty substance; b) at least one compound chosen from alkyl(poly)glucoside nonionic surfactants, oxyethylenated C8 to C30 fatty acid esters of sorbitan, and combinations thereof; c) at least one oxidation base chosen from (2,5-diaminophenyl)ethanol and acid salts thereof, solvates thereof, and hydrates thereof; d) optionally at least one coupler; e) optionally at least one basifying agent; and f) at least one chemical oxidizing agent; wherein the fatty substance content represents at least about 20% by weight, relative to the total weight of the composition.

16. The process according to claim 15, wherein the composition is obtained by mixing at least two compositions.

17. The process according to claim 15, wherein the composition is derived from the mixing of compositions (A) and (B): wherein composition (A) comprises: at least one oxidation base c), at least one coupler d), and optionally at least one basifying agent e); wherein composition (B) comprises: at least one chemical oxidizing agent f); wherein at least one of the compositions (A) and (B) comprises: at least one fatty substance, and at least one compound chosen from alkyl(poly)glucoside nonionic surfactants, oxyethylenated C.sub.8-C.sub.30 fatty acid esters of sorbitan b), and combinations thereof; and wherein the fatty substance content of the composition resulting from the mixing of compositions (A) and (B) is at least 20% by weight, relative to the total weight of the composition.

18. The process according to claim 15, wherein the composition is derived from the mixing of three compositions, and wherein the three compositions are aqueous or at least one of the compositions is anhydrous.

19. The process according to claim 18, wherein the composition is derived from the mixing of two aqueous compositions (B) and (C) and an anhydrous composition (A), wherein the anhydrous composition (A) comprises at least one fatty substance, wherein composition (B) comprises at least one coupler d), wherein composition (C) comprises at least one chemical oxidizing agent f), wherein optionally at least one basifying agent e) is included in compositions (A) and/or (B); wherein at least one compound b) chosen from alkyl(poly)glucoside nonionic surfactants, oxyethylenated C.sub.8-C.sub.30 fatty acid esters of sorbitan, and combinations thereof is included in at least one of the compositions (A), (B) or (C); and wherein the fatty substance content of the composition resulting from the mixing of compositions (A), (B) or (C) is at least 20% by weight, relative to the total weight of the composition.

20. A multi-compartment device comprising at least two compartments chosen from: I: i) a first compartment containing composition (A) comprising: at least one oxidation base c) chosen from (2,5-diaminophenyl)ethanol and acid salts thereof, solvates thereof, and hydrates thereof, at least one coupler d), and optionally at least one basifying agent e); and ii) at least a second compartment containing composition (B) comprising: at least one chemical oxidizing agent f); wherein at least one of the compositions (A) and (B) comprises: at least one fatty substance, and at least one compound chosen from alkyl(poly)glucoside nonionic surfactants, oxyethylenated C.sub.8-C.sub.30 fatty acid esters of sorbitan b), and combinations thereof; wherein the compositions of the compartments are intended to be mixed before application to give a composition after mixing of (A)+(B) in which the amount of fatty substance represents at least 20% by weight, relative to the total weight of the composition resulting from mixing of (A)+(B); or: I: i) a first compartment containing anhydrous composition (A) comprising at least one fatty substance; ii) a second compartment containing a cosmetic composition (B) comprising at least one coupler d); and iii) at least a third compartment containing composition (C) comprising at least one chemical oxidizing agent f); wherein optionally at least one basifying agent e) is included in compositions (A) and/or (B); wherein at least one compound b) chosen from alkyl(poly)glucoside nonionic surfactants, oxyethylenated C.sub.8-C.sub.30 fatty acid esters of sorbitan, and combinations thereof is included in at least one of the compositions (A), (B) or (C); and wherein the compositions of the compartments are intended to be mixed before application to give a composition after mixing of (A)+(B)+(C) in which the amount of fatty substance represents at least 20% by weight, relative to the total weight of the composition resulting from mixing of (A)+(B)+(C).

Description

EXAMPLE 1

(1) The following compositions are prepared, in which the amounts are expressed in grams of product in their given state.

(2) 1. Dye Compositions

(3) a. Dye Composition A1:

(4) TABLE-US-00001 Composition A1 Liquid petroleum jelly (fatty substance a) 59.7 Tamanu kernel oil 0.1 Argan oil 0.1 Safflower oil 0.1 2-(2,5-Diaminophenyl)ethanol sulfate 1.58 (oxidation base c) 6-hydroxybenzomorpholine 0.033 (coupler d) 1--Hydroxyethyloxy-2,4-diaminobenzene 0.02 dihydrochloride (coupler d) 1,3-Dihydroxybenzene (resorcinol) 0.67 (coupler d) 1-Hydroxy-3-aminobenzene 0.12 (coupler d) Cationic hydroxyethylcellulose (Softcat SL 100 from 0.2 Amerchol) Oxyethylenated (2 OE) stearyl alcohol 1.13 Oxyethylenated (20 OE) stearyl alcohol 3.88 C8-C10 Alkyl polyglucoside as an aqueous 60% 4 solution (Oramix CG 110 from SEPPIC) Sorbitan monolaurate 4 OE 2.4 Monoethanolamine 4.39 Sequestrant 0.2 Reducing agent 0.45 Antioxidant 0.25 Deionized water qs 100 g

(5) b. Dye Composition A2:

(6) TABLE-US-00002 Composition A2 Liquid petroleum jelly (fatty substance a) 59.7 Oxyethylenated (40 OE) hydrogenated castor oil 1 (fatty substance a) Cocoylbetaine at 30% as an aqueous solution 10 2-(2,5-Diaminophenyl)ethanol sulfate 1.58 (oxidation base c) 6-hydroxybenzomorpholine 0.033 (coupler d) 1--Hydroxyethyloxy-2,4-diaminobenzene 0.02 dihydrochloride (coupler d) 1,3-Dihydroxybenzene (resorcinol) 0.67 (coupler d) 1-Hydroxy-3-aminobenzene 0.12 (coupler d) Pure monoethanolamine 5.16 (basifying agent e) Hydroxyethylcellulose (MW: 1 300 000) 2.5 Oxyethylenated (2 OE) stearyl alcohol 0.1 Oxyethylenated (20 OE) stearyl alcohol 0.1 Sodium lauryl ether sulfate (2.2 OE) at 70% as an 2.5 aqueous solution Sequestrant 2 Reducing agent 0.5 Antioxidant 0.5 Deionized water qs 100

(7) 2. Oxidizing Compositions:

(8) a. Oxidizing Composition B1

(9) TABLE-US-00003 Composition B1 50% Aqueous hydrogen peroxide solution 6 (200-volumes aqueous hydrogen peroxide solution) (chemical oxidizing agent f) Etidronic acid, tetrasodium salt 0.2 as an aqueous 30% solution Tetrasodium pyrophosphate decahydrate 0.04 Sodium salicylate 0.035 Dimethyldiallylammonium chloride/acrylic acid copolymer 0.74 (80/20) as an aqueous 40.5% solution (Merquat 280 from Nalco) Glycerol 4 (50/50 C.sub.8/C.sub.10) Alkyl polyglucoside as an aqueous 60% 3 solution (Oramix CG 110 from SEPPIC) Deionized water qs 100 g

(10) b. Oxidizing Composition B2

(11) TABLE-US-00004 Composition B2 50% Aqueous hydrogen peroxide solution 6 (200-volumes aqueous hydrogen peroxide solution) (chemical oxidizing agent f) Etidronic acid, tetrasodium salt 0.2 as an aqueous 30% solution Tetrasodium pyrophosphate decahydrate 0.04 Sodium salicylate 0.035 Dimethyldiallylammonium chloride/acrylic acid 0.74 copolymer (80/20) as an aqueous 40.5% solution (Merquat 280 from Nalco) Glycerol 4 Deionized water qs 100 g

(12) 3. Procedure

(13) The dye compositions A1 and A2 are mixed, respectively, with the oxidizing compositions B2 and B1, at a rate of one part of dye composition per one part of oxidizing composition.

(14) The mixtures A1+B2 and A2+B1 are then applied to locks of hair comprising 90% white hairs, at a rate of 10 grams of mixture per one gram of lock.

(15) After a leave-on time of 35 minutes at 27 C., the hair is rinsed with clear water and a conditioning shampoo is then applied to the hair.

(16) After drying, a light chestnut-brown shade of good strength and coverage is obtained on the hair.

EXAMPLE 2

(17) The following compositions are prepared, in which the amounts are expressed in grams of product in their given state.

(18) Dye Composition A3:

(19) TABLE-US-00005 Composition A3 Liquid petroleum jelly (fatty substance a) 59.7 Safflower oil (6/12/78 palmitic-oleic-linoleic acid 0.1 triglycerides) (fatty substance a) Tamanu kernel oil (fatty substance a) 0.1 Argan oil (fatty substance a) 0.1 Oxyethylenated sorbitan monolaurate (4 OE) (surfactant b) 2.4 2-(2,5-Diaminophenyl)ethanol sulfate 1.58 (oxidation base c) 6-Hydroxybenzomorpholine (coupler d) 0.033 1--Hydroxyethyloxy-2,4-diaminobenzene dihydrochloride 0.02 (coupler d) 1,3-Dihydroxybenzene (resorcinol) (coupler d) 0.67 1-Hydroxy-3-aminobenzene (coupler d) 0.12 Pure monoethanolamine (basifying agent e) 4.39 Cationic hydroxyethylcellulose (Softcat SL 100 from 0.2 Amerchol) Ethylenediaminetetraacetic acid 0.2 Oxyethylenated (2 OE) stearyl alcohol 1.13 Oxyethylenated (20 OE) stearyl alcohol 3.88 (50/50 C.sub.8/C.sub.10) Alkyl polyglucoside 4 as an aqueous 60% solution (Oramix CG 110 from SEPPIC) Reducing agent 0.45 Antioxidant 0.25 Fragrance 0.72 Deionized water qs 100

(20) Dye Composition A4

(21) TABLE-US-00006 Composition A4 Liquid petroleum jelly (fatty substance a) 50 Oxyethylenated sorbitan monolaurate (4 OE) (surfactant b) 5 2-(2,5-Diaminophenyl)ethanol sulfate 1.58 (oxidation base c) 6-Hydroxybenzomorpholine (coupler d) 0.033 1--Hydroxyethyloxy-2,4-diaminobenzene dihydrochloride 0.02 (coupler d) 1,3-Dihydroxybenzene (resorcinol) (coupler d) 0.67 1-Hydroxy-3-aminobenzene (coupler d) 0.12 Pure monoethanolamine (basifying agent e) 5.4 Cetylstearyl alcohol (50/50 C.sub.16/C.sub.18) 2.5 Carboxyvinyl polymer (Carbopol 980 from Lubrizol) 0.4 Sodium cetostearyl sulfate (50/50 C.sub.16/C.sub.18) (Lanette E from 2 Cognis) Oxyethylenated (20 OE) stearyl alcohol 2 Sequestrant 0.2 Reducing agent 0.4 Antioxidant 0.3 Deionized water qs 100

(22) Oxidizing Composition B3

(23) TABLE-US-00007 Composition B3 50% Aqueous hydrogen peroxide solution 12 (200-volumes aqueous hydrogen peroxide solution) (chemical oxidizing agent f) Disodium tin hexahydroxide 0.04 Tetrasodium pyrophosphate decahydrate 0.03 Liquid petroleum jelly 20 Poly[(dimethylimino)-1,3-propanediyl(dimethylimino)-1,6- 0.25 hexanediyl dichloride] as an aqueous 60% solution (Mexomer PO from Chimex) Polydimethyldiallylammonium chloride 0.5 at 40% in water (Merquat 100 from Nalco) Glycerol 0.5 Cetearyl alcohol (30/70 C.sub.16/C.sub.18) 6 Oxyethylenated (20 OE) stearyl alcohol 5 Protected oxyethylenated (4 OE) rapeseed acid amide 1.3 Vitamin E: DL--Tocopherol 0.1 Sequestrant 0.15 Deionized water qs 100

(24) 3. Procedure

(25) The dye compositions A3 and A4 are mixed with the oxidizing composition B3, at a rate of one part of dye composition per one part of oxidizing composition.

(26) The mixtures A3+B3 and A4+B3 are then applied to locks of hair comprising 90% white hairs, at a rate of 10 grams of mixture per one gram of lock.

(27) After a leave-on time of 35 minutes at 27 C., the hair is rinsed with clear water and a conditioning shampoo is then applied to the hair.

(28) After drying, a light chestnut-brown shade of good strength and coverage is obtained on the hair.

EXAMPLE 3

(29) The following compositions are prepared, in which the amounts are expressed in grams of product in their given state.

(30) Dye compositions A5 to A11:

(31) TABLE-US-00008 Ingredients A5 A6 A7 A8 Liquid petroleum jelly (fatty substance a) 60 60 60 59.7 Non-stabilized safflower oil (6/12/78 0.1 palmitic-oleic-linoleic acid triglycerides) (fatty substance a) Refined tamanu kernel oil (fatty substance a) 0.1 Virgin argan oil (fatty substance a) 0.1 Oxyethylenated (40 OE) hydrogenated 1 castor oil (fatty substance a) Mixture of linear C.sub.18 to C.sub.24 alcohols 4.6 4.6 (7/58/30/6 C.sub.18/C.sub.20/C.sub.22/C.sub.24) Alcohol content > 95% (fatty substance a) 2-(2,5-Diaminophenyl)ethanol sulfate 1.58 1.58 1.58 1.58 (oxidation base c) 6-Hydroxybenzomorpholine (coupler d) 0.033 0.033 0.033 0.033 1--Hydroxyethyloxy-2,4-diaminobenzene 0.02 0.02 0.02 0.02 dihydrochloride (coupler d) 1,3-Dihydroxybenzene (resorcinol) (coupler 0.67 0.67 0.67 0.67 d) 1-Hydroxy-3-aminobenzene (coupler d) 0.12 0.12 0.12 0.12 Pure monoethanolamine MEA (basifying 4.28 4.78 5.16 4.39 agent e) Carboxyvinyl polymer synthesized in an 0.1 0.1 ethyl acetate/cyclohexane mixture Cetyl palmitate 2 2 (fatty substance a) Glycerol 5 1 Cationic cellulose ether 0.2 Oxyethylenated oleyl alcohol (10 OE) 1 1 (ethoxylated fatty alcohol b) Oxyethylenated (20 OE) oleyl alcohol 4 4 (ethoxylated fatty alcohol b) Oxyethylenated decyl alcohol 1.2 0.9 (5 OE) (ethoxylated alcohol b) Oxyethylenated stearyl alcohol 0.1 1.13 (2 OE) (ethoxylated fatty alcohol b) Oxyethylenated stearyl alcohol 0.1 3.88 (20 OE) (ethoxylated fatty alcohol b) Cocoylbetaine as an aqueous solution 10 (50/50 C.sub.8/C.sub.10)Alkyl polyglucoside (2) as a 4 buffered aqueous 60% solution Oxyethylenated (60 OE) cetylstearyl (C.sub.16/C.sub.18) 0.01 0.01 alcohol ether of myristyl glycol (ethoxylated fatty alcohol b) Oxyethylenated sorbitan monolaurate (4 OE) 2.4 Sodium lauryl ether sulfate (2.2 OE) as an 2.5 aqueous solution Hydroxyethylcellulose 2.5 Sequestrant 0.2 0.2 0.2 0.2 Reducing agent 0.22 0.22 0.22 0.22 Fragrance 0.72 Deionized water qs 100 qs 100 qs 100 qs 100 Ingredients A9 A10 A11 Liquid petroleum jelly (fatty substance a) 4 60 50 Oxyethylenated (40 OE) hydrogenated castor oil (fatty 1 substance a) 2-(2,5-Diaminophenyl)ethanol sulfate (oxidation base c) 1.58 1.58 1.58 6-Hydroxybenzomorpholine (coupler d) 0.033 0.033 0.033 1--Hydroxyethyloxy-2,4-diamino-benzene 0.02 0.02 0.02 dihydrochloride (coupler d) 1,3-Dihydroxybenzene (resorcinol) (coupler d) 0.67 0.67 0.67 1-Hydroxy-3-aminobenzene (coupler d) 0.12 0.12 0.12 Pure monoethanolamine (basifying agent e) 4 5.4 Powdered sodium metabisulfite 0.5 0.5 Sodium sulfite 0.4 Carboxyvinyl polymer synthesized in an ethyl 0.4 acetate/cyclohexane mixture Oxyethylenated (20 OE) and oxypropylenated (5 OP) cetyl 20 alcohol (ethoxylated fatty alcohol b) Oxyethylenated (2 OE) stearyl alcohol (ethoxylated fatty 0.1 alcohol b) Oxyethylenated (20 OE) stearyl alcohol (ethoxylated fatty 0.1 2 alcohol b) Cocoylbetaine as an aqueous solution 10 Cetylstearyl alcohol (50/50 C.sub.16/C.sub.18) (fatty substance a) 2.5 Diethylenetriaminepentaacetic acid, pentasodium salt, as a 2 2 40% aqueous solution Disodium ethylenediaminetetraacetate dihydrate 0.2 Erythorbic acid (or D-isoascorbic acid) 0.3 Oleylamidopropyldimethylamine 2.5 Hydroxyethylcellulose 2.5 Oxyethylenated sorbitan monolaurate (4 OE) 5 Sodium lauryl ether sulfate (2.2 OE) as an aqueous 2.5 solution Protected oxyethylenated (10 OE) oleyl alcohol hydrogen 0.5 phosphate Vitamin C: L-ascorbic acid as a fine powder 0.5 0.3 Deionized water qs qs qs

(32) Oxidizing Compositions B5 to B12:

(33) TABLE-US-00009 Ingredients B5 B6 B7 B8 Sequestrant 0.15 0.15 0.15 50% Hydrogen peroxide (200 vol. aqueous 12 12 15 12 hydrogen peroxide solution) Tin disodium hexahydroxide 0.04 0.04 0.04 Etidronic acid, tetrasodium salt, as a 30% 0.2 aqueous solution Tetrasodium pyrophosphate decahydrate 0.03 0.03 0.04 0.03 Sodium salicylate 0.035 Liquid petroleum jelly (fatty substance a) 20 20 20 Poly[(dimethyliminio)-1,3- 0.25 0.25 0.25 propanediyl(dimethyliminio)-1,6- hexanediyl dichloride] as an aqueous solution at 60% Polydimethyldiallylammonium chloride at 0.5 0.5 0.5 40% in water, non-stabilized Dimethyldiallylammonium chloride/ 0.74 acrylic acid copolymer (80/20) as a protected aqueous solution Glycerol 0.5 0.5 4 0.5 Cetylstearyl alcohol 6 6 6 (30/70 C.sub.16/C.sub.18) (fatty substance a) Oxyethylenated (20 OE) cetylstearyl 5 5 5 alcohol (ethoxylated fatty alcohol b) (50/50 C.sub.8/C.sub.10)Alkyl polyglucoside (2) 3 as a buffered aqueous 60% solution Protected oxyethylenated (4 OE) rapeseed 1.3 1.3 1.3 acid amide Vitamin E: DL--tocopherol 0.1 0.1 0.1 Ingredients B9 B10 B11 Diethylenetriaminepentaacetic acid, pentasodium 0.15 0.15 salt as an aqueous 40% solution 50% Hydrogen peroxide (200 vol. aqueous 15 6 12 hydrogen peroxide solution) Disodium tin hexahydroxide 0.04 0.04 Etidronic acid, tetrasodium salt, as a 30% aqueous 0.2 solution Tetrasodium pyrophosphate decahydrate 0.03 0.04 0.03 Sodium salicylate 0.035 Liquid petroleum jelly (fatty substance a) 35 20 Poly[(dimethyliminio)-1,3- 0.25 0.25 propanediyl(dimethyliminio)-1,6-hexanediyl dichloride] as an aqueous solution at 60% Polydimethyldiallylammonium chloride at 40% 0.5 0.5 in water, non-stabilized Dimethyldiallylammonium chloride/acrylic acid 0.74 copolymer (80/20) as a protected aqueous solution Glycerol 0.5 4 0.5 Cetylstearyl alcohol (30/70 C.sub.16/C.sub.18) 6 6 (fatty substance a) Oxyethylenated (20 OE) stearyl alcohol (ethoxylated 5 5 alcohol b) (50/50 C.sub.8/C.sub.10)Alkyl polyglucoside (2) as a buffered 3 60% aqueous solution Protected oxyethylenated (4 OE) rapeseed acid 1.3 1.3 amide Vitamin E: DL--tocopherol 0.1 0.1

(34) The dye compositions A5 to A11 are mixed with the corresponding oxidizing formulae B5 to B11 in proportions of 1 part of Ai per 1 part of Bi.

(35) The mixtures Ai+Bi obtained are then applied to 90% grey hair. The mixture/lock bath ratio is 10/1 (g/g). The leave-on time is 35 minutes at 27 C.

(36) After the leave-on time, the hair is rinsed with clear water and a shampoo is applied.

(37) After drying, a light chestnut-brown shade of good strength and coverage is obtained on the hair in all the cases.